65 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.
Prime factorization of 65:
5 × 13
See below for interesting mathematical facts about the number 65 from the Numbermatics database.
Names of 65
- Cardinal: 65 can be written as Sixty-five.
- Scientific notation: 6.5 × 101
Factors of 65
Divisors of 65
Bases of 65
- Binary: 10000012
- Hexadecimal: 0x41
- Base-36: 1T
Squares and roots of 65
Scales and comparisonsHow big is 65?
- 65 seconds is equal to 5 seconds.
To count from 1 to 65 would take you about thirty-two seconds.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 65 cubic inches would be around 0.3 feet tall.
Recreational maths with 65
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Cite this page
"Number 65 - Facts about the integer". Numbermatics.com. 2020. Web. 24 January 2020.
Numbermatics. (2020). Number 65 - Facts about the integer. Retrieved 24 January 2020, from https://numbermatics.com/n/65/
Numbermatics. 2020. "Number 65 - Facts about the integer". https://numbermatics.com/n/65/
The information we have on file for 65 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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